Big Bang Boom

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Rules and Gameplay

The Big Bang Boom slot by NetEnt is a visually captivating game that begins on a 4×4 grid with 256 ways to win, showcasing its innovative gameplay. Players can expand the reel set up to 10 rows high in the base game, increasing the ways to win up to 10,000. This expansion is triggered by winning combinations and special bomb symbols that clear adjacent symbols or sections of the grid, opening up new potential for wins. The game’s high volatility and a competitive RTP of 96.07% promise an engaging experience with significant win potential.

Bonus Features

Big Bang Boom excels with its array of dynamic bonus features designed to boost the excitement and winning chances:

  • Free Spins: Triggered by expanding the playfield to its maximum height, awarding players with 6 free spins that introduce even more expanding possibilities.
  • Expanding Reels: Players can unlock additional rows and reels, increasing the ways to win and introducing more symbols into play.
  • Super Bombs Feature: Includes various types of bombs like Vertical, Horizontal, Diagonal, and Plus-Pattern Bombs, each with unique explosion patterns that clear symbols and enhance win potential.
  • Avalanche Feature: Triggered after every winning combination, allowing new symbols to fall into place and potentially create additional wins.
  • Bonus Buy: An option for players to purchase direct access to the Free Spins feature, immediately increasing the game’s excitement.


The game’s symbols are intricately designed to match the slot’s vibrant and explosive theme:

  • Low-paying symbols include traditional card values with a graffiti twist, such as Jacks, Queens, Kings, and Aces.
  • High-paying symbols feature thematic elements like smiley faces, butterflies, hearts, and crowns, all adorned with neon colors.
  • Special symbols consist of various bomb types, each with a specific function to unlock features and boost wins.


Starting with 256 ways to win, the Big Bang Boom slot provides players with the potential to increase the number of paylines up to 10,000 by expanding the grid. This innovative approach to paylines allows for an ever-changing and dynamic gameplay experience, where each spin can unlock new winning possibilities and transform the game landscape significantly.

Pros & Cons

Pros Cons
Expanding reels up to 10 rows high and 10,000 ways to win High volatility may not suit all players
Diverse and unique bomb features for dynamic gameplay Maximum win cap of 4,300x bet might be low for some high rollers
Free Spins and Bonus Buy option enhance gaming experience Learning curve for understanding all the features and mechanics

Minimum and Maximum Bet

The Big Bang Boom slot offers a flexible betting range to accommodate a wide variety of players. The minimum bet is set at $0.25, making it accessible for players on a budget or those who prefer to play with lower stakes. On the other end, the maximum bet reaches up to $100, appealing to high rollers and those looking to maximize their potential winnings. This wide betting range ensures that Big Bang Boom can be enjoyed by players of all levels and budgets.

Game Jackpot

The Big Bang Boom slot features a game jackpot with a maximum win of up to 4,300 times the player’s stake. Alongside this impressive potential payout, the game boasts a competitive Return to Player (RTP) rate of 96.07% and is classified under the high volatility category. This combination suggests that while wins may not occur on every spin, the payouts can be significant when they do hit, aligning with the game’s explosive theme and dynamic gameplay.

About Provider

NetEnt, the provider behind Big Bang Boom, is a leading name in the online casino gaming industry, renowned for its high-quality slots and innovative gameplay features. With a portfolio that includes some of the most popular slots on the market, NetEnt continues to set the standard for engaging and visually stunning games. Their commitment to excellence and player satisfaction is evident in the detailed graphics, unique game mechanics, and immersive themes that characterize their games, making them a favorite among players worldwide.

How To Play

  • Start by setting your bet size using the game’s interface, adjusting the levels to match your preferred stake between $0.25 and $100.
  • Spin the reels and watch for winning combinations or special bomb symbols to unlock the game’s features.
  • Utilize the expanding reels feature by forming wins next to blocked sections of the grid, opening up new rows for additional ways to win.
  • Keep an eye out for various types of bomb symbols that can clear symbols in different patterns, enhancing your chances of forming winning combinations.
  • Aim to expand the grid to its maximum size to trigger the Free Spins feature, where sticky wins and further expansions can lead to significant payouts.
  • Consider using the Bonus Buy feature if available in your jurisdiction to directly enter the Free Spins round.


Big Bang Boom emerges as a thrilling and visually engaging slot game from NetEnt, offering players a dynamic and innovative gaming experience. With its unique expanding reels mechanism, a variety of bomb features, and the potential for significant payouts, it stands out in the crowded slot game market. The game’s wide betting range, high RTP, and the creative theme further enhance its appeal, making it suitable for a broad audience of online slot enthusiasts. Whether you’re drawn to the game’s explosive theme, the strategic gameplay, or the potential for big wins, Big Bang Boom is a slot that promises both entertainment and excitement.